OPTICAL TRANSMISSION SYSTEMS INCLUDING SIGNAL VARYING DEVICES AND METHODS

摘要

An optical system (10) including plural optical processing nodes (14) inoptical communication via a plurality ofsignal varying devices (12). A first signal varying device including anoptical fiber (30) configured to produce Raman scattering/gainin a signal wavelength range and a first signal variation profile. A firstpump (12) with multiwavelengths output stimulates Ramanscattering/gain within the signal wavelength range. A second signal varyingdevice (12) having a second signal variation profile toproduce a cumulative signal variation profile that differs from the first andsecond signal variation profiles.